Secondary battery.



UNITED sTATeS ntrE T orrfcn.

EMIL'LAQRENCE ()PPERMANXUF wxnox, EXGLAXU, ASSIGXUR 'm,

n x nmxg'rmc ACCLMCLATOR CQAIBANY. Lumen, or oxuox,

EXJ'ILAXD. SECONDARY BATTERY.

He. stapes. Specification ef'Lettm lalteat. rename time 29, mos.

' Application and April 11. was. Serlil No. 266,007-

To all {t'luim it my cmmm. t of the hair or wool threu' heat the active Be it known that 1, Exit. LAL'HEXCE 01 mass under the .electretre ytie e'etien. ,At 55 rzmmxx, a suh'ect of the King efGreet the same time the active material becomes Britain and Ireland, residing at Lentlgn, Jenaeious and metallic, and that-clayemi- Englend, have invented a new amluseful Irnnently durable, althou h perferated throughpre'vernent in and Relating to Electric See.- cut its mass by ca il ary hclcs, offering an e'ndai Batteries, of whichthle fellewing is a immense active s ace to the eleetrelyte. 6o speci caticn. j V It has further been feund-thatthe active This invention relates tothe manufacture material so formed is capable 9f internal exrd'bf plates fer secondary batteries 01: accumupansi'on and contraction during the e and tors, and has for its-object the formation" of discharve without the buckling or de orm'aanactit'e material for sttch sccundary plates-f tien of {he plate as a whole. 6 which shall eventttallt"- after chargeand tlls- 5 I am aware that heir wool, andother sub.- charg'q become exceedingly pere'us and atthe stances have been used in combination with '1'; same. time hard andtcnaewus, thus giying active oxid as binding agents; "but. I have time'm late :5 great endurance which will fore described are not obtained and tll high elliciency inche c. and disehargejpcr feund that when s used withcut subdivision j Weight of material e'n'lp oyed, and at thesurne' referred to the :mpcrtant results as heteuibe- 7o t P not buc le'ur tsturt under abnormal ccmlats practtcally no better as to working cttpacad tiuns, cf charge .and dlscherge. To efl'ect lty-aml life than culinary plates in eenrmen this,'I make a mixture 0f the usualective uxid use.

- with'aniinal hair or wtmlur equivalent mate- 'Hevln new particularl descrihed and as- 75 rial in a fineLt -suhgllvided cu'ntlitien, preferccrtained the' nature of thts invntlon'aml in ably when lmth are in a .glry condition, so as. what manner the same is to be performed,.f

2 5 to obtain asfar as ptxsiblc an inthnatemlx- 'declare that what I claim is-- turc With-the hair 01' st-(In! permeating the gL-A cumposite material for seebndary 7 exit! i'nevcry directinn. lictrifibattery-plates, consist 13: ac vs 0 l In ordcrttu et thehair 6r wool into a paste cuntaining finelv-subtlitfide filaments proper. sulitln-irllzd cnnditiun remly fur mixof material destructlhle by theelectrolytie ture with the 0xid, 1 grind the same in any action of battery liquid; said filaments 'not.

suitable manner, sires to insure the length nf exceeding one-sixteenth at inch inlcn h. any individual hairis not mere than un six- 1' 1.1- :A ccmpositc material tcenth of an inch; but the linlk ls suhst'an-tg j electric battery-plates,consisting of an active tiallv in thc'furm of powder. Fm cxan'i- Ie; pngste containin hairs not exceeding one-six- I take hair felt and subject it tn the grim Eng tenth of an inc 1 in-length.

jutting 0f the am -Eng surface u! an cmery- 1 3%;1 secondary-battery plate havin an wheel; by which treatment 'the hair of the. 1 epphetiactive paste contgmin short airs 9o felt ls reduced tn; pmwlt'retl heir and shert nut exceeding one-sixteenth 0' an inch in hair. The tu'ixtnl )muu-rial is then fermed length.

40 into a taste in the usual way. lthasheen'g LA secondary-Slater plate lmvin an luuml rum ac'tiia'l experience that it the hair} e9 lied active paste cdntainin finely-s11 ifut-ans from one-hall Leone-slidinc-hugger in: ed filaments .of material t estructihle bv 95 cent. ufthe mixture this k prnpqm' fi g 'the electrolytic action of the battery liqqi mthleh :glyus stttisfactery working said filementsn'et exceeding one-sixtcenthef The mixture men he built up into a plef'e on, i an inch in length.

any convenient metallic grtgl inundation or In testimony whereof I have signed my frame. lhc rlate is thenutlricrl andfemted; name to this specificatien in the presence of tooby chat-e and I F d tliischfirge'in the usfuaii iwey. two subscribing witnesses.

t is can t att eporcs'ttye t eaetive 5o material is steadil increased by successive l mulmw OPPERIMX series ol'charge an discharge until the maximum QGFGSRYIS obtained and that tlns efiect eppears to bedue to the gradual destruction Witnesses;

RICHARD A. Hommn, CHARLESCARTER.

fer seeon ary 1,55 

